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Finding the Fourth Proportional to 110,116.80, 165,175.20 and 76,874.40

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Solution

The fourth proportional to 110,116.80, 165,175.20 and 76,874.40 is: 115,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,116.80 : 165,175.20 = 76,874.40 : x
  2. Step 2: Convert to fraction form
    110,116.80/165,175.20 = 76,874.40/x
  3. Step 3: Cross multiply
    110,116.80x = 165,175.20 × 76,874.40
  4. Step 4: Simplify right side
    110,116.80x = 12,697,744,394.88
  5. Step 5: Solve for x
    x = 12,697,744,394.88/110,116.80
  6. Step 6: Final answer
    x = 115,311.60

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